#include <stdio.h>

int 
main(void)
{
	float x, expression;
	
	puts("Enter x value:");
	scanf("%f", &x);

	expression = 3.0f * (x * x * x * x * x) + 2.0f * (x * x * x * x) 
			- 5.0f * (x * x * x) - (x * x) + 7.0f * (x) - 6.0f;

	printf("Result of the expression: %f\n", expression);

	return 0;
}
